Syntax

FLATTEN(range1,[range2,...])

Arguments

The printed syntax lists 2 argument(s), in order:

  • range1
  • ange optional

“optional” marks an argument Google prints in square brackets; “repeatable” marks one Google prints with “…”.

Description from Google Docs Editors Help

“Flattens all the values from one or more ranges into a single column.”

Google’s help article for FLATTEN →

Source: Google Docs Editors Help, “Google Sheets function list” (support.google.com/docs/table/25273), record record 484 of 516, data fetched 28 September 2026. Data month: September 2026.